An appliance includes a belt that is worn by being wound around a wrist. The appliance includes: at least a first display region that is positioned in an area of the belt that corresponds to a volar-side surface or a radius-side surface of the wrist; and a second display region that is positioned in an area of the belt that corresponds to a back-side surface of the wrist. During a blood pressure measurement period, first control for displaying ongoing blood pressure measurement information only on the first display region is performed, and during a period other than the blood pressure measurement period, second control for displaying information that needs to be displayed on the first or second display region is performed.